Left 4 Dead, Dead Air construction site barricade, playing online with 3 strangers on expert level. We light the barricade, then one of our team decides to rush through the flames, and as soon as he does he triggers a Tank. The tank kills him then comes after the rest of us; it catches fire but still manages to kill everyone but me because I run back to the safe room. I wait there for the rest of my team to respawn, then make a run for their closet, and along the way I hear a smoker and a hunter gunning for me. I don't know if I would call the feeling that I got trying to reach that closet fear; it's more like dread. But it is my favorite type of moment in the game; at least it is when I succeed.
Later, playing the Death Toll campaign, on the dock as the ship is coming in, a hunter on fire jumps right at me from the shore but falls short, landing in the water right next to the dock. I swear I heard it make a death whimper, and like a fool I run to the edge of the dock to see. Suddenly it pounces out of the water, still on fire, like the killer coming back to life in a schlock horror movie, and pins me. That is probably the most startled I've been in a game.
Later, playing the Death Toll campaign, on the dock as the ship is coming in, a hunter on fire jumps right at me from the shore but falls short, landing in the water right next to the dock. I swear I heard it make a death whimper, and like a fool I run to the edge of the dock to see. Suddenly it pounces out of the water, still on fire, like the killer coming back to life in a schlock horror movie, and pins me. That is probably the most startled I've been in a game.